diff options
Diffstat (limited to 'arch/x86/kernel/realmode.c')
| -rw-r--r-- | arch/x86/kernel/realmode.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/kernel/realmode.c b/arch/x86/kernel/realmode.c index 7415c42547ac..a465775b32f2 100644 --- a/arch/x86/kernel/realmode.c +++ b/arch/x86/kernel/realmode.c @@ -58,6 +58,20 @@ void __init setup_real_mode(void) /* Copied header will contain relocated physical addresses. */ memcpy(&real_mode_header, real_mode_base, sizeof(struct real_mode_header)); + +#ifdef CONFIG_X86_32 + *((u32 *)__va(real_mode_header.startup_32_smp)) = __pa(startup_32_smp); + *((u32 *)__va(real_mode_header.boot_gdt)) = __pa(boot_gdt); +#else + *((u64 *) __va(real_mode_header.startup_64_smp)) = + (u64) __pa(secondary_startup_64); + + *((u64 *) __va(real_mode_header.level3_ident_pgt)) = + __pa(level3_ident_pgt) + _KERNPG_TABLE; + + *((u64 *) __va(real_mode_header.level3_kernel_pgt)) = + __pa(level3_kernel_pgt) + _KERNPG_TABLE; +#endif } /* |